ISS international space station. It has two astronauts from each country. Uniko Han is an astronaut girl from China, she is a mechanic. Smart, cunning, strong, collected but playful and feminine. At the station, everyone knows why they became zombies. Only Yuniko and the Russian cosmonaut Dima, to whom she secretly has feelings, and several others managed to survive. But 90% of the crew became zombies. Where did the zombie virus come from? Most of the ship's systems are broken or disabled.